increase accuracy of the hwclock linux ubuntu pc when not connected to network

i am currently using the following commands to set the clock date & time using a network connection on a linux pc:

# dpkg-reconfigure tzdata
# ntpdate-debian
# /sbin/hwclock –systohc

The pc will be will not be connected to a network for a long period of time. Has anyone got suggestion on how to stop /slow the time drift in the PC clock time once the PC has been disconnected from the network?

It’s 2016. Password authentication should be dead — or at least close to dying. But, unfortunately, it has not traversed Quagga stage yet. Using password authentication is like laundering hotel guest linens with a washboard — it’s Passé.

Learn several ways to interact with files and get file information from the bash shell.
ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…